Improvement in modes of attaching cultivator-teeth to the frames



G. W. ZEIGLER.

Cultivator-Teeth.

No. 58,533. Patented Oct. 2, I866.

Witnesses: 5am a4 /7Z@m mg m UNITED STATES PATENT OEEIoE.

GEORGE IV. ZEIGLER, OF TIFFIN, OHIO.

IMPROVEMENT IN MODES 0F ATTACHING CULTIVATOR-TEETH TO THE FRAMES.

Specification forming part of Letters Patent No. 58,533, dated October2, lSoG.

To all whom it may concern:

Be it known that I, GEORGE W. ZEIGLER, of Tiffin, in the county ofSeneca and State of Ohio, have invented a new and useful Mode ofAttacl'iing Shovels of Cultivators to their Frames; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, making a partof this specification, in which- Figure l is a side view of a shovelattached in the improved manner to a portion of a framebeam. Fig. 2 is abottom view of the same. Fig. 3 is a longitudinal section,taken in thevertical plane indicated by red line a: :r, Fig. 2. Fig. 4c is aperspective view of the shovel with its eye-shank.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention relates to an improved mode of attaching shovels orshovel-teeth to the frames of cultivators, whereby the shovels can beadjusted and secured rigidly at any desired angle with respect to theirframe without re moving the shovels from their frame, as will behereinafter described.

To enable others skilled in the art to understand my invention, I willdescribe its construction and operation.

In the accompanying drawings, A represents a portion of the fame of acultivator, which may be either the cross-beam or the central beam.

0 represents a shovel, which may be made of anysuitable size, and of anyofthe well-known forms for cultivating young plants. The upper portionor shank of this shovel has a cir cular portion, a, formed on it, theupper face of which is convex, as shown in Fig. 3, and the lower face isconcave. This concavo-convex shank has a hole vertically through itscenter, which hole is somewhat greater in diameter than the diameter ofthe bolt 13, that passes vertically through it.

At an appropriate point on the bottom of the beam A for attaching theshovel O, I insert a plate, D, and secure this plate firmly in place, sothat it shall not be moved out of its place.

The bottom surface of plate D is concave, and adapted for receivingsnugly the corresponding convex surface of the shank a of the shovel, asshown in Fig. 3. Through the center of the plate D a hole is made, whichreceives tightly through it the shank of the bolt B, which bolt passesup through the beam A, and receives upon its upper end a washer, b, andnut c, by means of which latter the shovel is secured rigidly in anydesired posi tion.

The bolt B has a large circular head, 9, formed on its lower end, whichis of greater diameter than the hole through the concavoconvex shank aof the shovel. The upper face of the bolt-head g is made convex, to litthe corresponding concavity in the bottom face of said shovel-shank.

The impinging surfaces of the bolt-head, shovel-shank, and fixed plate Dbeing made of the proper size, and the nut c firmly screwed down, itwill be seen that the shovel will be immovably secured to the beam A.Then, by loosening the nut c, it will be seen that the shank a can slidefreely either to the right or left hand, or either backward or forward,so that the shovel can be inclined in any desired direction from avertical line, or turned about the axis of the bolt B either toward theright or left, as may be required, in either of which positions theshovel can be se= cured rigidly to the beam A by means of the nut c.

As my invention is applicable to all varieties of agriculturalimplements wherein shovels or teeth are used that require adjusting, Ido not contemplate confining it to any definite form of cultivator. Forthis reason I have not illustrated in the drawings a full machine, butmerely represented one form of shovel applied to a portion of a beam.

If desirable a perfectly flat-headed bolt may be used; but in this casea washer having a convex surface will be required, in order to admit ofthe universal movement of the joint.

Having thus described my invention, what I claim as new, and desire tosecure by Let ters Patent, is

1. Securing a shovel or cultivator-tooth to its frame by means of auniversal joint in cave plate D, convex bolt-head g, nut c, and a suchmanner that the shovel can be inclined shovel G, or its equivalentsubstantially as either laterally or longitudinally with respectdescribed. to its frame substantially as described. 1 /T r t 4 2. TheGOllGZlVO-GOHVGX shank a, formed on GEORGE ADIGLDR' or secured to ashovel or tooth, substantially as Witnesses: and for the purposesdescribed. I). J. GOODSELL,

3. The combination of the shank a, con- M. MARTIN.

